The bulldozer moves the rectangular block at a constant velocity by exerting a force F in the y direction on ring A. Three cables are connected from the ring to the block. The force in cable AB is 900 lb. Determine the force F and the forces in cables AC, AD for equilibrium. Work in units of lb. but do not enter units in your answers. B 3 ft. X ~k 4 ft 8 ft Z D 6 ft 2 ft 7 ft C A F ww W y